asperula

Definitions

from The Century Dictionary.

noun A genus of dwarf hardy herbs, used for borders, rockeries, and shady places, containing almost 80 species of ill-defined plants of the family Rubiaceæ, two of which, A. odorata, commonly called sweet woodruff, and A. hexaphylla are commonly cultivated in America.

In the north of the region, some of the best known plants yield products of commercial value, such as rubber (Hevea brasiliensis), mahogany (Swietenia macrophylla), balsam wood (Myroxylon balsamum), timber and essential oil (Amburana acreana), tagua nut (Phytelephas microcarpa), and strychnine (Strychnos asperula).